科技爱好者周刊（第 388 期）：测试是新的护城河

apache with centos 7

initial repo

mongodb

The hostname property of the URL interface is a string containing either the domain name or IP address of the URL. If the URL does not have a hostname, this property contains an empty string, "". IPv4 and IPv6 addresses are normalized, such as stripping leading zeros, and domain names are converted to IDN.